This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Reprints and Permissions Copyright Information Books from ASM Press MicrobeWorld Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Tari, P. H. Articles by Anderson, A. J. Search for Related Content PubMed PubMed Citation Articles by Tari, P. H. Articles by Anderson, A. J. Agricola Articles by Tari, P. H. Articles by Anderson, A. J.

 Previous Article  |  Next Article 

Appl Environ Microbiol. 1988 August; 54(8): 2037-2041
Copyright © 1988, American Society for Microbiology. All Rights Reserved.

Fusarium Wilt Suppression and Agglutinability of Pseudomonas putida

Biology Department, Utah State University, Logan, Utah 84322-4500

ABSTRACT

Mutants of Pseudomonas putida (Agg^–) that lack the ability to agglutinate with components present in washes of bean and cucumber roots showed limited potential to protect cucumber plants against Fusarium oxysporum f. sp. cucumerinum. However, a higher level of protection was observed against Fusarium wilt in cucumber plants coinoculated with the parental bacterium (Agg⁺), which was agglutinable. The Agg^– mutants did not colonize the roots of cucumber plants as extensively as the Agg⁺ parental isolate did. In competition experiments involving bean roots inoculated with a mixture of Agg⁺ and Agg^– bacteria, the Agg⁺ strains colonized roots to a greater extent than the Agg^– cells did. These data suggest that the Agg⁺ phenotype provides additional interactions that aid in the beneficial character of P. putida.

^* Corresponding author.

Utah State Agricultural Experiment Station Paper no. 3555.